A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.
Classification: Copper washers including spring washers not threaded
NSN 5945-01-060-5791
NSN 6240-00-383-7668
NSN 6610-01-418-5029
NSN 5920-01-499-4236
NSN 5950-01-355-4990
NSN 6320-01-364-1732
NSN 6220-00-660-5539
NSN 5925-01-542-9068
NSN 6130-01-656-1538
NSN 7035-01-388-6943
NSN 5975-00-325-9032
NSN 5920-01-020-7659